Price: 5432 CNY
Availability: InStock

Description

The PST625-EW is a high-performance electronic soft starter developed by ABB, specifically designed for smooth starting and stopping of three-phase asynchronous motors.

Below are its core technical specifications:

Specification Category	Details
Product Type	Three-Phase AC Electronic Soft Starter (for squirrel-cage induction motors)
Rated Operational Current	25 A (continuous rated current at 40°C ambient temperature; derating required for higher temperatures)
Motor Power Rating	– 400 V AC: Up to 11 kW – 230 V AC: Up to 5.5 kW (matches motor power based on supply voltage and application load)
Supply Voltage Range	– Three-phase: 200–480 V AC – Voltage tolerance: ±10% of rated supply voltage
Supply Frequency	50/60 Hz (automatic adaptation to grid frequency)
Starting/stopping Modes	– Starting: Voltage ramp (adjustable ramp time: 0.5–30 s), current limit (adjustable limit: 1.5–6 x motor rated current) – Stopping: Voltage ramp down (0.5–30 s), coast-to-stop (optional)
Control Interface	– Local control: Front-panel potentiometer (for ramp time/current limit adjustment), start/stop buttons, status LEDs – Remote control: 24 V DC digital input (start/stop signal), analog input (0–10 V DC or 4–20 mA for speed reference, optional) – Communication: Optional Modbus RTU (via RS485 port) for integration with PLC/DCS systems
Motor Protection Functions	– Overload protection: Class 10 (complies with IEC 60947-4-2) – Overcurrent protection: Trips when current exceeds 6 x rated current (adjustable threshold) – Under/overvoltage protection: Triggers alarm/trip when supply voltage is outside 90%–110% of rated value – Phase loss protection: Detects missing phase in supply or motor windings, stops motor within 2 s – Overheating protection: Built-in temperature sensor (NTC) for soft starter module, trips at ≥90°C
Electrical Performance	– Power factor (PF): ≥0.95 at rated load – Harmonic distortion: ≤5% (at full load, complies with IEC 61000-3-2) – Inrush current: ≤3 x rated current (during soft start, compared to 6–8 x for direct starting)
Mechanical & Environmental Ratings	– Enclosure rating: IP20 (front panel; suitable for indoor cabinet installation) – Mounting: DIN rail mounting (EN 60715, 35 mm) or panel mounting – Operating temperature: -10°C to +50°C (ambient; derate 2% per °C above 40°C) – Storage temperature: -40°C to +70°C – Humidity: 5%–95% RH (non-condensing, no dripping water) – Vibration resistance: 5–500 Hz, 0.15 mm amplitude (complies with IEC 60068-2-6)
Dimensions & Weight	– Width x Height x Depth: 45 mm x 140 mm x 110 mm (approx., excluding terminals) – Net weight: 0.5 kg (approx.)
Compliance & Certifications	– Safety standards: IEC 60947-1, IEC 60947-4-2 – EMC compliance: EN 61000-6-2 (industrial environment), EN 61000-6-4 – CE, UL, CSA certifications (for global market access)

PST625-EW PDF

PST625-EW

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